Prep 2.0.0 (#778)

* sigstore: 2.0.0

Signed-off-by: William Woodruff <william@trailofbits.com>

* README, CHANGELOG: 2.0 prep

Signed-off-by: William Woodruff <william@trailofbits.com>

* transparency: fix Pydantic API use

Signed-off-by: William Woodruff <william@trailofbits.com>

---------

Signed-off-by: William Woodruff <william@trailofbits.com>

Author: woodruffw

CHANGELOG.md

@@ -8,6 +8,8 @@ All versions prior to 0.9.0 are untracked.
 
 ## [Unreleased]
 
+## [2.0.0]
+
 ### Added
 
 * CLI: `sigstore sign` and `sigstore get-identity-token` now support the
@@ -279,7 +281,8 @@ All versions prior to 0.9.0 are untracked.
   ([#351](https://github.com/sigstore/sigstore-python/pull/351))
 
 <!--Release URLs -->
-[Unreleased]: https://github.com/sigstore/sigstore-python/compare/v1.1.2...HEAD
+[Unreleased]: https://github.com/sigstore/sigstore-python/compare/v2.0.0...HEAD
+[2.0.0]: https://github.com/sigstore/sigstore-python/compare/v1.1.2...v2.0.0
 [1.1.2]: https://github.com/sigstore/sigstore-python/compare/v1.1.1...v1.1.2
 [1.1.1]: https://github.com/sigstore/sigstore-python/compare/v1.1.0...v1.1.1
 [1.1.0]: https://github.com/sigstore/sigstore-python/compare/v1.0.0...v1.1.0

README.md

@@ -394,7 +394,7 @@ namely the Fulcio's supported identity providers and the claims expected within
 
 ### Verifying against a signature and certificate
 
-By default, `sigstore verify` will attempt to find a `<filename>.sigstore` in the
+By default, `sigstore verify identity` will attempt to find a `<filename>.sigstore` in the
 same directory as the file being verified:
 
 ```console

sigstore/__init__.py

@@ -25,4 +25,4 @@
 * `sigstore.sign`: creation of Sigstore signatures
 """
 
-__version__ = "2.0.0rc3"
+__version__ = "2.0.0"

sigstore/transparency.py

@@ -24,9 +24,9 @@
     BaseModel,
     ConfigDict,
     Field,
-    FieldValidationInfo,
     StrictInt,
     StrictStr,
+    ValidationInfo,
     field_validator,
 )
 from pydantic.dataclasses import dataclass
@@ -62,7 +62,7 @@ def _tree_size_positive(cls, v: int) -> int:
 
     @field_validator("tree_size")
     def _log_index_within_tree_size(
-        cls, v: int, info: FieldValidationInfo, **kwargs: Any
+        cls, v: int, info: ValidationInfo, **kwargs: Any
     ) -> int:
         if "log_index" in info.data and v <= info.data["log_index"]:
             raise ValueError(